Henby leonabb kelley anb balph kelley



Jan. 27, 1931. H. L. KELLEY ET AL 1,790,425

ICE MAKING APPARATUS Filed 'July 1928 2 Sheets-Sheet 1 Attorney- Jan. 27, 1931. H. L. KELLEY ET AL ICE MAKING APPARATUS Filed July 27, 1928 2 Sheets-Sheet 2 Inventors k M. W J E 4M. 3i I I 1 Ma. 3 w j T m L 5 I S T I I r.. U .V K m II/II/I/IIIII/l/l/I/I/I fizz/Z LLEFZZqy M flal J 12; y M

- Q y v v Attarnqy Fatented Jan. 27, 1931 PATENT OFFICE HENRY LEONARD KELLEY AND RALPH KELLEY, or BAKERSFIELD, CALIFORNIA ICE-MAKING Arrhenius Application filed July 27, 1928. Serial No. 295,704.

The present invention relates to improvementsin refrigeration and has reference more particularly to an ice making apparatus.

. One of the important objects of the present invention is to provide an ice making apparatus which lncludes inner and outer tanks,

the inner tank having a series of spaced brine circulating pipes arranged therein and around which pipes are disposed ammonia circulating pipes, the brine being adapted to travel through the inner pipes in a direction opposite to that in which the ammonia travels through the concentric outer pipes whereby a so called frictional action is obtained to hasten the freezingof the ice in the cans positioned between the circuitous pipes in the inner tank. l V

A further object is to provide an ice making apparatus of the above mentioned character wherein brine and ammonia areboth adapted to circulate around the inner tank thereby preventing warm air from coming in contact with the inner tank so as to more eficiently carry out the process of manufacturing the ice.

A furtherobject is to provide an ice making apparatus of the above mentioned character which is simple in construction, inexpensive, strong and durable and further well adapted to the purposes for'which it is de signed. 7 Other objects and advantages will become apparent during the course of the following description.

In the accompanying drawing, forming a part of this specification, and in which like 1 numerals indicate like parts throughout the Figure 2 is a sectional view taken approximately on the line 2-2 of Figure 1,

F igurev 3 is an enlarged detail sectional view through one of the ammonia circulating pipes arranged within the inner tank and showing the brine circulatingpipes disposed therein, and

Figure 4 is a cross sectional view taken approximately on the line H of Figure 3.

tank that is open at its top and arranged within the outer tank is the smaller rectangular shaped inner tank 2, the same being spaced from the respective sides of the outer tank as well as from the bottom through the medium of the supporting means shown generally at 8 in Figure 2. The spacing of the bottom of the inner tank with respect tothe bottom of the outer tank will afford a means for effecting the circulation of the ammonia and brine in the outer tank completely around the, inner tank as will be presently described.

The outermost of these tanks is preferably heat insulated at its outer surface. Arranged within the inner tank 2 in a horizontal manher and spaced from the sides and bottom of said'inner tank is the intermediate portion of ammonia circulating pipes 4, said intermediate portion being of zig-zag formation as of rectangular formation is arranged within the outer tank 1 and this ammonia circulating pipe 7 has communication with the supply of inlet 5 by means of theby-pass 8. Communic'ation is afforded between the pipe 7 and the outlet 6 as shown at 9 in Figure 1.

Suitable expansion valves 10 are associated with the ammonia circulating pipe 7 that is arranged within the cooling tank 1 on opposite sidesof the by-pass 8, An additional expansion valve 11 is associated with the inlet 5. and has communication with the receiver tank not shown.

Expansion valves 12 are also associated with the ammonia circulating pipe 7 on opposite sides of the connection of this pipe 7 with the outlet 6 as shown in Figure 1.

A brine circulating pipe of a cross sectional area much smaller than that of the ammonia circulating pipe is disposed within the inner tank 2 and has its intermediate portion 13, also of staggered or zig-zag formation for disposition through the parallel spaced portions of the ammonia circulating pipe 4. One end of the pipe 18 extends through the inner tank 2 through one side of said inner tank 2 and the outer tank 1 to provide an inlet 14 that has connection with a brine circulating pump (not shown) for supplying the brine to the pipe 13. The other end of this pipe 1s formed with the outlets 15 and 16 respectlvely located at the remote end of the inner tank 2 and suitable cut off valves 17 are associated V with the discharge ends of the brine circulating pipe 13.

Brine is supplied to the cooling tank 1 through the medium of the outlet nipple 18 that extends from the inlet portion 15 as shown in Figure 1.

An additional brine receiving pipe 19 eX- tends through that portion of the ammonia circulating pipe 4 that is located nearest the outlet or discharge end 6 of the ammonia line and this pipe 19 is provided at its ends with suction inlet 20 and 21 respectively which have communication with a suction line 22 that extends through the front side of the outer tank 1 and has connection with a suction pump not shown for sucking out the brine from the inner tank 2 at the end remote from the brine discharge portions 15 and 16. The suction line 22 also has communication with the brine in the outer tank 1 through the medium of the suction nipple 23 as shown in Figure 1.

As indicated by the dotted lines in the drawings, suitable rectangular shaped cans 24 that are partially filled with water are positioned between the zig-zag portions of the ammonia circulating pipe that is arranged within the inner casing or tank 2 and when the necessary valves are opened, the ammonia will flow through the pipes 4 and 7 while the brine will circulate in an opposite direction through the smaller pipe 13 and also circulate in the outer tank 1 around the inner tank 2.

This action of the brine and ammonia travelling in opposite directions will cause what may be termed as a frictional action by which ice will be formed in the cans 24 more rapidly and by circulating the brine and ammonia around the inner tank 2, the inner tank will be cooled to further increase the rapidity in which ice may be formed in the tank.

Furthermore, the inner tank 2 has its bottom face with respect to the bottom of the outer tank so that a free circulation around the inner tank is afforded. It will thus be seen from the foregoing description that we have provided an ice making apparatus that will save considerable time and labor and furthermore will at all times be positive and efficient in its operation as well as increasing the output of the ice manufactured.

It is to be understood that the zig-zag portions of the ammonia and brine circulating pipes may be arranged in a superposed series so as to extend for substantially the entire height of the can receiving compartments.

lVhile we have shown the preferred embodiment of our invention, it is to be understood that various changes in the size, shape and arrangement of parts may be resorted to, without departing from the spirit of the invention and the scope of the appended claims.

Having thus described our invention, what we claim as new is:

1. In an ice making apparatus, a tank, an ammonia circulating pipe arranged within the tank and constructed in such a manner as to effect a circuitous flow of ammonla through said pipe, said circuitous formation forming a plurality of spaced can receiving compartments, a brine circulating pipe of circuitous formation extending through the circuitous ammonia pipe, the brine being adapted to circulate in a direction opposite to that in which the ammonia circulates.

2. In an ice making apparatus, a tank, an ammonia circulating pipe arranged within the tank and constructed in such a manner'as to offset a circuitous flow of ammonia through said pipe, said circuitous formation forming a plurality of spaced can receiving compartments, a brine circulating pipe of circuitous formation extending through the circuitous ammonia pipe, the brine being adapted to circulate in a direction opposite to that in which the ammonia circulates, one end of the brine circulating pipe being formed with discharge ports that discharge the brine into the tank at one end thereof, and a brine suction pipe arranged in the other end of the tank for removing the brine from said tank.

3. In an ice making apparatus of the class described, inner and outer tanks, the inner tank being spaced from the sides and bottom of the outer tank, an ammonia circulating pipe extending through one pair of adjacent sides of the tank, the portion of said ammonia circulating pipe within the inner tank being arranged in such a manner as to effect a circuitous flow of ammonia therethrough and to provide can receiving chambers, an ammonia circulating pipe arranged within the outer'tank, a brine circulating pipe extending through the portion of the ammonia circulating pipe within the inner tank, the brine being adapted to circulate through its pipe in a direction opposite to that in which the ammonia circulates through its pipe in the I inner tank, said brine circulating pipe being provided with an outlet nipple for supplying the outer tank with brine.

4. In an ice making apparatus of the class described, inner and outer tanks, the inner tank being spaced from the sides and bottom of the outer tank, an ammonia. circulating pipe extending through one pair of adjacent sides of the tank, the portion of said ammonia circulating pipe within the inner tank being arrangedin such a manner as to effect a circuitous flow of ammonia therethrough and to provide can receiving chambers', an ammonia circulating pipe arranged within'the V outer tank, a brine circulating pipe extending through the portion of the ammonia circulating pipe within the inner tank, the brine being adapted to circulate through its pipe in a direction opposite to that in which the ammonia circulates through its pipe in the inner tank, said brine circulating pipe being provided with an outlet nipple for supplying the outer tank with brine,one end of the circuitous brine circulating pipe providing outlets for discharging the brine into the inner tank, and a brine suction pipe having communication with the inner tank at the end remote from the. discharge outlet of the brine circulating pipe. 5. In an ice makingv apparatus of the class described, inner and outer tanks, the inner tank being spaced from the sides and bottom of the outer tank, an ammonia circulating pipe extending through one pair of adjacent sides of the tank, the portion of saidammonia circulating pipe within the inner tank being arranged in such a manner as'to effect a circuitous flow of ammonia therethrough and to provide can receiving chambers, an ammonia circulating pipe arranged within the outer tank, a brine circulating pipe extending through the portion of the ammonia circulating pipe within the inner tank, thebrine being adapted to circulate through its pipe 40 in a direction opposite to that .in which the ammonia circulates through its pipe in the inner tank, said brine circulating pipe being provided with an outlet nipple for supplying the outer tank with brine, one end of the circuitous brine circulatingpipe providing outlets for discharging the brine into the inner tank, and a brine suction pipe having communication with the inner tank at the end remote from the discharge outlet of thebrine' circulating pipe, said suction pipe also having communication with the outer tank-for removing the brine therefrom. In testimony whereof we aflix our signatures. HENRY LEONARD KELLEY. RALPH KELLEY. 

